We have a mandolina Plant (at least thats what I believe it is called) . It is a Climbing plant with Red Trumpet shaped Flowers. It has been growing in a Large pot all summer and I would like to be able to preserve it for next year. Can someone provide some direction as to what to do? Things like Should it be cut back? Should it be brought indoors? Is it just an Annual and I should forget it? I have attached a photo of the plant, The trellis it is climbing on is about 6 feet high as a reference as to size.